Yes, although if you NAT read Moderate make sure the UPnP is Checked On
Yes, your xbox can connect with your wireless router. You must buy the wireless add on for the xbox. If you don't wish to pay $100 for the wireless add on, you can just connect an ethernet cable from router into the xbox.
No, Xbox LIVE requires a working internet connection provided through a router or modem.
As far as your xbox has a wireless adapter and your router is configured properly you should not have any problems.
yes, it definitely will
Any wireless router can work on the Xbox 360 yes. A wireless plug in adapter can work.
Yes, you only need to sign in with your account like you normally would.
It should be, just make sure that your router is configured to work with both G as well as N networks.
DLink's hubs are a bit ignored although they'll work just fine. You may want to consider a Netgear hub, however.
It should work, it only really matters what kind of router or modem you have. Xbox Live doesn't even interact with computers only the console itself.
Yes. Virtually any router connected to a high speed Internet connection that meets the requirements will work with the Xbox 360.
Call of Duty 4 does work with the Xbox 360. If it does not work on your Xbox, It might be something wrong with your Xbox, or possibly the game disc.
you need an ethernet (sp?) cable either connected directly from one xbox to the other . or plug two Ethernet cables into the same router then into each xbox . should work then